^ this. The fact that it's 20v and only $249 vs. the Flexvolt's $349 makes me think it'll be lower powered and / or not have auto filters cleaning. Then again the Flexvolt is a beast of a DC that has more CFM that some corded models (The new Makita hybrid only does 125 when plugged in I believe.)

That's only 12 cu inches. The product details sheet says it has 45% more capacity than the DWH302DH, which looks like it's the same dust box that's on the DWH161b. Either way, this looks like a very small, portable vacuum D/E for point of use and not a big, haul around tool.